diff --git a/README.md b/README.md
index ed2ce9e..f08b29f 100644
--- a/README.md
+++ b/README.md
@@ -17,16 +17,17 @@ For direct examples, check out src/__tests__/filterHelper.jest.js since it shows
 
 * Install the library using `npm save --dev butterfly-data-filters`
 * Add `import {applyFilters} from 'butterfly-data-filters';` where you want to use the filters
-  * You can also import `availableFilterTypes`, which is a list of all types supported.
-    * This list may be useful for validation before calling the filters or within React PropTypes
+    * You can also import `availableFilterTypes`, which is a list of all types supported.
+        * This list may be useful for validation before calling the filters or within React PropTypes
 * Build your filters like in the examples below and combine them into a single array
 * Call `applyFilters(filters, values, skipUndefined)`
-  * If `skipUndefined` is false, only datasets that contain all fields that your filter apply to will be returned
+    * If `skipUndefined` is false, only datasets that contain all fields that your filter apply to will be returned
 
 ### Substring filters
 
-In order to filter your dataset for values that contain a certain substring, you will have to format your 
+In order to filter your dataset for values that contain a certain substring, you will have to format your
 filters like so:
+
 ``` 
 {
     'field': 'searchField',
@@ -38,6 +39,7 @@ filters like so:
 ### Array filters
 
 In order to filter your dataset for a list of values, you can use array filters:
+
 ```
 {
   'field': 'searchField',
@@ -47,16 +49,19 @@ In order to filter your dataset for a list of values, you can use array filters:
 ```
 
 This filter will return all datasets where `searchField` is either `honk` or `goose`.  
-You can also pass `['_any']` as value to get all datasets and effectively skip this filter.  
+You can also pass `['_any']` or just the string `_any` as value to get all datasets and effectively skip this filter.  
 This is useful as a default value when you don't know what the possible filter options are in advance.
 
 ### Date filters
+
 There are a number of filters that allow you to search for datasets with specific date values.  
-In general, these can be called with either a properly formatted string (a string that `new Date()` understands) or a 
+In general, these can be called with either a properly formatted string (a string that `new Date()` understands) or a
 vanillaJS `Data` object as value.
 
 #### minDate
+
 This filter will return any datasets where the search field date is after the specified one.
+
 ```
 {
   'field': 'searchField',
@@ -66,7 +71,9 @@ This filter will return any datasets where the search field date is after the sp
 ```
 
 #### maxDate
+
 This filter will return any datasets where the search field date is before the specified one.
+
 ```
 {
   'field': 'searchField',
@@ -76,8 +83,10 @@ This filter will return any datasets where the search field date is before the s
 ```
 
 #### dateRange
+
 This filter lets you specify different date ranges to search for.  
 You may use one of the following date range presets:
+
 * today
 * yesterday
 * 7days (the last week)
@@ -85,6 +94,7 @@ You may use one of the following date range presets:
 * last_month
 
 Or a custom range like this:
+
 ```
 {
   'field': 'searchField',
@@ -100,7 +110,9 @@ Or a custom range like this:
 You can also skip dateRange checks by setting the value to `_any`.
 
 ### Minimum number filters
+
 You can filter for numeric numbers that are higher than a specified one like this:
+
 ```
 {
   'field': 'searchField',
@@ -108,8 +120,11 @@ You can filter for numeric numbers that are higher than a specified one like thi
   'value': 1,
 },
 ```
+
 ### Maximum number filters
+
 You can filter for numeric numbers that are lower than a specified one like this:
+
 ```
 {
   'field': 'searchField',
@@ -119,7 +134,9 @@ You can filter for numeric numbers that are lower than a specified one like this
 ```
 
 ### Strict equality filters
+
 Use this filter to search for strict equality:
+
 ```
 {
   'field': 'searchField',
@@ -129,7 +146,9 @@ Use this filter to search for strict equality:
 ```
 
 ### Lax truthiness filters
+
 Use this filter to search for datasets that have a truthy value as searchField
+
 ```
 {
   'field': 'bool',
@@ -138,7 +157,9 @@ Use this filter to search for datasets that have a truthy value as searchField
 ```
 
 ### Lax falsiness filters
+
 Use this filter to search for datasets that have a falsy value as searchField
+
 ```
 {
   'field': 'bool',
@@ -147,8 +168,10 @@ Use this filter to search for datasets that have a falsy value as searchField
 ```
 
 ### Existence check filters
+
 Use this filter to search for datasets that have any value set (or no value at all) for searchField.  
 Note that this filter overrides the `skipUnset` param.
+
 ```
 {
     'field': 'test',
@@ -161,7 +184,9 @@ You can also pass the array `[true, false]` or `[_any]` to this filter to effect
 This is useful when using material-ui multi selects.
 
 ### Child attribute filters
+
 With the childAttr filter type, you can search child fields recursively like this:
+
 ```
 {
   'field': 'child',
@@ -178,9 +203,11 @@ With the childAttr filter type, you can search child fields recursively like thi
 You can use any filter type (including `childAttr` and `childArrayAttr`) in your child filter.
 
 ### Array child attribute filters
+
 This filter functions just like the `childAttr` type but instead of querying a single child field.
-It can be used to go through an array of child objects and return all datasets where at least one child 
+It can be used to go through an array of child objects and return all datasets where at least one child
 fits the filter.
+
 ```
 {
     field: 'children',
@@ -209,7 +236,8 @@ This library is expected to grow over time and more features will be added.
 ## Contributing
 
 Contributions are very welcome, even if they are not related to code.  
-If you found any bugs or are missing some specific feature, [please file an issue](https://github.com/binary-butterfly/butterflyDataFilters/issues/new).
+If you found any bugs or are missing some specific
+feature, [please file an issue](https://github.com/binary-butterfly/butterflyDataFilters/issues/new).
 
 Pull requests are obviously also very welcome.  
 However, please note that we can only accept PRs that do not lower our test coverage of 100%.
diff --git a/package-lock.json b/package-lock.json
index 7f269e1..955c460 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "butterfly-data-filters",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "butterfly-data-filters",
-      "version": "0.2.1",
+      "version": "0.2.2",
       "license": "MIT",
       "devDependencies": {
         "@babel/core": "^7.10",
diff --git a/package.json b/package.json
index bd799d0..cfe55d7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "butterfly-data-filters",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "license": "MIT",
   "private": false,
   "main": "dist/filterHelper.js",
diff --git a/src/__tests__/filterHelper.jest.js b/src/__tests__/filterHelper.jest.js
index 5eca6d6..ba5ca06 100644
--- a/src/__tests__/filterHelper.jest.js
+++ b/src/__tests__/filterHelper.jest.js
@@ -728,8 +728,24 @@ describe.each([
         [
             {'test': true}, {'banana': false},
         ],
-        'array value _any all allowed',
+        'array value [_any] all allowed',
     ],
+    [
+        [
+            {
+                'field': 'test',
+                'type': 'existence',
+                'value': '_any',
+            },
+        ],
+        [
+            {'test': true}, {'banana': false},
+        ],
+        [
+            {'test': true}, {'banana': false},
+        ],
+        'array value _any all allowed',
+    ]
 ])('Test existence filters', (filters, values, expected, name) => {
     test(name, () => {
         expect(applyFilters(filters, values, false)).toStrictEqual(expected);
diff --git a/src/filterHelper.js b/src/filterHelper.js
index e957f0a..5d66581 100644
--- a/src/filterHelper.js
+++ b/src/filterHelper.js
@@ -95,7 +95,7 @@ const checkFilter = (filter, valueRow, skipUndefined) => {
             }
             break;
         case ('array'):
-            if (filter.value[0] !== '_any' && filter.value.indexOf(value) === -1) {
+            if (filter.value !== '_any' && filter.value[0] !== '_any' && filter.value.indexOf(value) === -1) {
                 return false;
             }
             break;